Jane Thompson apparently decided to keep the child in her house as she was too weak and helpless.

We’ll keep her a day or two longer; she is so weak and helpless

But in reality, Jane developed a soft spot in her heart for Maggie. “The sweetness of that sick child, looking ever to her in love, patience and gratitude” melted her heart. Jane “carried her in her heart as well as in her arms, a precious burden.”